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DETAILS & MATERIALS

Introducing the exquisite 18k diamond necklace, a piece that embodies elegance and intimacy. This stunning necklace features a single diamond, delicately suspended within a framework of solid 18k gold. Each element of this piece has been thoughtfully designed to create a harmonious blend of luxurious materials and minimalist aesthetics. The 18k diamond necklace is not just an accessory; it’s a statement that conveys feelings too deep for words.

Handmade in Portugal, this necklace showcases the country’s rich tradition of craftsmanship. The skilled artisans pour their dedication into every detail, ensuring that each necklace is not only beautiful but also uniquely crafted. With a natural diamond certified by INCM, you can be assured of the quality and authenticity of the materials used in the making of this necklace.

The 18k diamond necklace is perfect for any occasion—be it a romantic dinner, a special celebration, or simply to elevate your everyday style. It makes a heartfelt gift for someone special, or as a treat for yourself. The luminous diamond refracts light beautifully, creating a captivating sparkle that draws attention yet maintains an air of subtle elegance.

Whether worn alone or layered with other delicate pieces, the 18k diamond necklace ensures that you stand out while remaining chic and sophisticated. This necklace is a timeless addition to any jewelry collection. Make this piece your go-to accessory, and let the diamond's brilliance shine close to your heart.

INFORMATION

18k Gold Crafted in solid 18k gold, this piece is made to last a lifetime — and beyond. Wear it every day, everywhere, without limitations. 

Diamonds Every diamond selected by CINCO is chosen for its clarity and brilliance — natural mined stones that elevate each piece to another level. Set by hand in Portugal by artisans with decades of experience.

Made in Portugal Designed and handcrafted in Portugal with our expertise and unique craftsmanship. All CINCO pieces are hallmarked for authenticity and certified by the INCM (where applicable).

The value of gold fluctuates daily. Check the current gold price here.

SIZE & FIT

gemstones 1 diamond with 0.11 ct finish polished weight 1.45 gr length 35-40 cm, adjustable

JEWELRY TO LAST A LIFETIME

CERTIFIED INCM

FAQs

Please read our FAQs page to find out more.

How long will my order take to arrive?

Orders are usually prepared within 1–2 business days. Once your order has been dispatched, you’ll receive an email with tracking details. Delivery times vary by destination and will be shown at checkout. Personalized/ Engraved and On-Demand pieces may require additional preparation time, as indicated on the product page.

Can I return my order?

Yes. You may return your order within 14 days of delivery, provided the pieces are unworn, unaltered and returned in their original condition. You can use your preferred tracked courier or ask us to arrange a return service, with the cost deducted from your refund. Once your return reaches us, please allow 7–10 business days for the refund to be processed.

Does CINCO jewelry have a warranty?

Yes. Every CINCO piece is covered by a 3-year warranty from the date of delivery against manufacturing defects. Your invoice and order number serve as proof of warranty. The warranty does not cover loss, accidental damage, improper use, normal wear or the natural fading of gold plating. If you experience an issue, contact us with your order number and photos so our team can assess the piece.